Portable fluorescent lamp



FIG. 1 is a perspective view of a portable fluorescent lamp showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a right side elevational view thereof. 

The ornamental design for a portable fluorescent lamp, substantially as shown and described. 